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Icepower50asx2

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DATASHEET Version 1.5 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Contents General Description .............................................................................................................................................................. 3 Block Diagram ........................................................................................................................................................................ 4 Connection Diagram............................................................................................................................................................. 5 Absolute Maximum Ratings .............................................................................................................................................. 8 Power Specifications.......................................................................................................................................................... 10 General Audio Specifications (SE-mode) .................................................................................................................... 11 General Audio Specifications (BTL-mode) ................................................................................................................. 12 Electrical Specifications ................................................................................................................................................... 12 Timing Specifications ......................................................................................................................................................... 12 Disturbances on the Mains............................................................................................................................................... 13 Lightning ................................................................................................................................................................................ 13 Mechanical Specifications ................................................................................................................................................ 13 Typical Performance Characteristics........................................................................................................................... 14 Dissipated Power vs. Output Power ............................................................................................................................. 21 Loading ................................................................................................................................................................................... 22 Features ................................................................................................................................................................................. 23 Protection Features ............................................................................................................................................................ 25 Input/Output Interface .................................................................................................................................................... 26 Operational Timing Diagram ........................................................................................................................................... 28 Thermal Design ................................................................................................................................................................... 28 Physical Dimensions .......................................................................................................................................................... 29 Drill Pattern .......................................................................................................................................................................... 31 Page 1 of 33 DATASHEET Version 1.5 Page 2 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Safety Standards ................................................................................................................................................................. 32 ESD Warning ......................................................................................................................................................................... 32 Packaging and Storing ....................................................................................................................................................... 32 Notes ....................................................................................................................................................................................... 33 Notice ...................................................................................................................................................................................... 33 DATASHEET Version 1.5 Page 3 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply General Description The ICEpower50ASX2 is a fully integrated, intelligent audio power conversion solution designed particularly for highly competitive consumer and professional audio products. The ICEpower50ASX2 is EMC and safety approved and the “black-box” completeness allows for fast design-in and minimized time to market. Key benefits include: • State-of-the-art, high efficiency ICEpower amplification stage based on the patented HCOM modulation and MECC control techniques • A power supply with selectable mains converter and separate aux converter • A wide set of features for plug-and play implementation into applications such as active speakers and subwoofers, wireless speakers, multimedia audio, musical instrument amplifiers and distributed audio The ICEpower50ASX2 is protected against short-circuit, overload and over-heating and includes onboard fuses and EMI filtering to provide a CE and FCC pre-approved design. The ICEpower50ASX2 is available in two variants with either stereo or mono output configuration. Combined with the auxiliary supply for powering external circuitry and the complete elimination of heat sinks and EMI shields; the ICEpower50ASX2 is the natural choice in any audio application that requires a compact, integrated power solution. Key Specifications • • • • • • • • • • • 170W @ 1% THD+N, 20Hz – 20kHz, 4Ω, BTL 2 x 47W @ 1% THD+N, 20Hz – 20kHz, 4Ω, SE (both channels driven) 88W (2Ω) + 22W (8Ω) @ 1% THD+N, 20Hz – 20kHz, SE (both channels driven with asymmetric load) 125dBA dynamic range (BTL-version) 120dBA dynamic range (SE-version) THD+N = 0.003% @ 1W (8Ω, 1kHz, SE) THD+N = 0.002% @ 1W (8Ω, 1kHz, BTL) 81 % total efficiency @ 170W, 4Ω CCIF Intermodulation distortion = 0.0002%, 10W, 4Ω, 18.5kHz/1kHz ±25V unregulated auxiliary power supply Selectable Mains 85-132VAC & 170-264VAC Key Features • • • • • • • • • Fully integrated audio power solution Stereo or mono output versions available Rugged construction Thermal protection Over current protection Sound optimized soft clipping Suitable for CE approved designs EMI conforms to: EN55013 EN55020 EN61000-3-2 EN61000-3-3 FCC part 15-B Safety conforms to: IEC 60065 7th ed. UL 60065 7th ed. DATASHEET Version 1.5 Page 4 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Release Notes PCB Version Data Sheet Version Date Revised by Description H 1.40 November 13, 2014 LBH/SMK Asymmetric load H 1.50 March 16, 2015 LBH/SMK Minor drawing update DATASHEET Version 1.5 Page 5 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Block Diagram Figure 1: ICEpower50ASX2 block diagram Connection Diagram Figure 2: ICEpower50ASX2 connections DATASHEET Version 1.5 Page 6 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply The connector interface of the ICEpower50ASX2 modules has five industry standard connectors selected for long-term reliability. AC Header Specifications (P100) Type: JST B2P3-VH PIN 1 2 Function Description Type Live Neutral Live AC Neutral AC Input Input Table 1: AC connector specifications Speaker Header Specifications (P101)* Type: JST B2P-VH PIN Function Description Type 1 Vo+ GND Amplifier output channel 1 GNDchannel1 Output GND 2 Table 2: Speaker connector specifications *P101 is not mounted on the BTL-version. Speaker Header Specifications (P104) Type: JST B2P-VH PIN Function Description Type 1 Vo+ GND in SE (Vo- in BTL) Amplifier output channel 2 GNDchannel2 * Output GND* 2 Table 3: Speaker connector specifications * This pin is Vo+ (hot) in BTL version and GND in SE version Signal Header Specifications (P102) Type: JST B7B-PH-K-S PIN Function Description Type 7 6 5 4 3 2 1 Vin channel 1 GND GND Vin channel 2 Thermal OC Enable Input signal channel 1 Ground terminal for the signal section. Ground terminal for the signal section. Input signal channel 2 Thermal monitoring pin Monitor pin amplifier over current Amplifier enable input GND GND Input Output* Output* Input/Output* Table 4: Signal connector specifications * See “Features” section on page 23 DATASHEET Version 1.5 Page 7 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Auxiliary Supply Header Specifications (P103) Type: JST B3B-PH-K-S PIN Function Description Type 1 2 3 Vdaux GND Vsaux Positive unregulated auxiliary supply (typical +25V) Ground terminal for the auxiliary section. Negative unregulated auxiliary supply (typical -25V) Output GND Output Table 5: Auxiliary supply header specifications DATASHEET Version 1.5 Page 8 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Absolute Maximum Ratings Absolute maximum ratings indicate limits beyond which damage may occur. Mains Input Section 115V mains setting Symbol Parameter Value Units ACmax ACmin F Maximum off-line voltage Minimum off-line voltage Mains frequency range 85VAC - 132VAC 132 851) 45 – 65 VAC VAC Hz Table 6: Absolute maximum ratings, mains input section - 115V setting 230V mains setting Symbol Parameter Value Units ACmax ACmin F Maximum off-line voltage Minimum off-line voltage Mains frequency range 170VAC - 264VAC 264 1701) 45 – 65 VAC VAC Hz Table 7: Absolute maximum ratings, mains input section - 230V setting 1) The ICEpower50ASX2 will operate at lower levels but the output power will be reduced. If the off-line voltage is too low, the ICEpower50ASX2 switches off. Auxiliary Supply Symbol IVd IVs Parameter Value (+25V)2) Maximum current draw from Vd Maximum current draw from Vs (-25V)2) 200 -200 Unit mA mA Table 8: Absolute maximum ratings, auxiliary supply 2) If the auxillary supply on the ICEpower50ASX2 is used with a capacitive load please remember to read the section “Capacitive Loading of the AUX Supply” in the ICEpower50ASX2 designer’s manual. Input Section Symbol Parameter Vin channel 1 , Vin channel 2 Maximum voltage range on pin Table 9: Absolute maximum ratings, input section Value ±3.3 Unit Vp DATASHEET Version 1.5 Page 9 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Output Section Symbol Parameter Value Rload Rload Iout3) CL Minimum load, BTL Minimum load , SE Maximum current draw from amplifier output Maximal pure capacitive loading 3 2 20 470 Table 10: Absolute maximum ratings, output section. 3) The over-current protection will act to protect the amplifier. (See ”Protection features”) Thermal Section Symbol Parameter Value Unit Ta Max. operating ambient temperature (tropical safety conditions tested) 50 OC Table 11: Absolute maximum ratings, thermal section Units Ω Ω A nF DATASHEET Version 1.5 Page 10 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Power Specifications Unless otherwise specified. Ta=25 OC, f=1kHz, RL=4Ω, 230V mains Symbol Parameter Conditions tPmax PT Time of maximum rated output power Continuous output power4) without thermal shutdown. (SE, 4Ω) Both channels driven Continuous output power4) without thermal shutdown. (SE, 8Ω) Both channels driven Continuous output power4) without thermal shutdown. (BTL, 4Ω) Continuous output power4) without thermal shutdown. (BTL, 8Ω) Quiescent power consumption (– amplifier disabled) Quiescent power consumption (amplifier enabled) Total power efficiency 170W out. No preheating. Thermal stab. @ Ta = 25 OC. - 120 43 - s W Thermal stab. @ Ta = 25 OC. - 30 - W Thermal stab. @ Ta = 25 OC. - 50 - W Thermal stab. @ Ta = 25 OC. - 100 - W Enable pin low - 4 - W Po = 0W - 7 - W ±31 % PT PT PT PSMPS Pq η Vdaux, Vsaux Nominal DC voltage Table 12: Power specifications 4) The module is mounted vertically in free air. Po = 100W Po = 170W Any combination of mains voltage and output power within specified ranges. Min ±16 Typ Max 80 81 ±25 Units V DATASHEET Version 1.5 Page 11 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply General Audio Specifications (SE-version) Unless otherwise specified, f=1kHz, PO=1W, Ta=25 OC. Symbol Parameter Conditions PO Output power @ 1%THD+N 20Hz < f < 20kHz, both channels driven. (AES17 measurement filter) 5) Output power @ 10%THD+N 20Hz < f < 20kHz, both channels driven. (AES17 measurement filter) 5) RL = 4Ω 230Vac / 50Hz, 115Vac / 50Hz RL = 4Ω 230Vac / 50Hz, 115Vac /50Hz Output power @ 1%THD+N 20Hz < f < 20kHz, both channels driven, 230Vac / 50Hz, RL = 2.7Ω PO PO Min Typ Max Units - 47 45 - W - 57 54 - W - 69 23 - - 66 22 - RL = 8Ω - 88 22 - Second channel RL = 8Ω (AES17 measurement filter) 5) 115Vac / 50Hz , RL = 2Ω RL = 8Ω - 82 20 - Output power @ 1%THD+N 20Hz < f < 20kHz, one channel driven. (AES17 measurement filter) 5) RL = 4Ω 230Vac / 50Hz, 115Vac / 50Hz - 50 50 - W Output power @ 1%THD+N 20Hz < f < 20kHz, one channel driven. (AES17 measurement filter) 6) RL = 2.7Ω 230Vac / 50Hz, 115Vac / 50Hz - 74 70 - W Output power @ 1%THD+N 20Hz < f < 20kHz, one channel driven. (AES17 measurement filter) 6) RL = 2Ω 230Vac / 50Hz, 115Vac / 50Hz - 93 88 - W THD+N (4Ω,AES17 measurement filter) f = 100Hz, PO =1W - 0.003 0.01 % 25 20.5 ±0.1 130 95 1.5 14 4 120 0.0007 0.007 70 21 ±0.5 25 ∝ - µV dB dB kHz kHz RL = 8Ω W First channel RL = 2.7Ω, PO Second channel RL = 8Ω (AES17 measurement filter) 5) 115Vac / 50Hz , RL = 2.7Ω Output power @ 1%THD+N 20Hz < f < 20kHz, both channels driven, 230Vac / 50Hz, RL = 2Ω RL = 8Ω W First channel RL = 2Ω, PO PO PO THD+N 6) VN,O AV f fu Output referenced idle noise Nominal Voltage Gain Frequency response Upper bandwidth limit (SE) (-3dB) fl Lower bandwidth limit (-3dB) Zo Abs. output impedance ZL Load impedance range D Dynamic range IMD Intermodulation (CCIF) TIM Transient intermodulation (DIM30) Table 13: General audio specifications, SE mode A-weighted f = 1 kHz 20Hz - 20kHz, All loads RL = 8Ω RL = 4Ω RL = All loads f = 1kHz 15 20 3 A-weighted (50W, 4Ω) f =18.5kHz, 1kHz, PO =10W PO =10W - 5) An Audio Precision AES17 20 kHz 7th order measurement filter is used for measurements. The frequency 6.67 kHz corresponds to the worst-case situation where both 2nd and 3rd harmonics are within the audio band. Hz mΩ Ω dB % % DATASHEET Version 1.5 Page 12 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply General Audio Specifications (BTL-version) Unless otherwise specified, f=1kHz, PO=1W, Ta=25 OC. Symbol Parameter Conditions PO Output power @ 1%THD+N 20Hz < f < 20kHz (AES17 measurement filter) 6) Output power @ 10%THD+N 20Hz < f < 20kHz (AES17 measurement filter) 6) THD+N in 4Ω (AES17 measurement filter) 6) Output referenced idle noise RL = 4Ω 230Vac / 50Hz, 115Vac / 50Hz RL = 4Ω 230Vac / 50Hz, 115Vac /50Hz f = 100Hz, PO =1W PO THD+N VN,O AV f fu Nominal Voltage Gain Frequency response Upper bandwidth limit (BTL) (-3dB) fl Lower bandwidth limit (-3dB) Zo Abs. output impedance ZL Load impedance range D Dynamic range IMD Intermodulation (CCIF) TIM Transient intermodulation (DIM30) Table 14: General audio specifications, BTL mode Min A-weighted 20Hz < f < 20kHz f = 1 kHz 20Hz - 20kHz, All loads RL = 8Ω RL = 4Ω RL = All loads f = 1kHz Typ Units - W W - 170 150 - 220 180 0.002 0.005 15 20 70 26 27 ±0.2 100 75 1.5 18 4 125 0.0002 0.003 28 ±0.6 30 ∝ - 3 A-weighted at 170W@4Ω f =18.5kHz, 1kHz, PO =10W PO =10W Max - % µV dB dB kHz kHz Hz mΩ Ω dB % % 6) An Audio Precision AES17 20 kHz 7th order measurement filter is used for measurements. The frequency 6.67 kHz corresponds to the worst-case situation where both 2nd and 3rd harmonics are within the audio band. Electrical Specifications Unless otherwise specified, Ta=25 OC. Symbol Parameter Conditions fo fs fsmps Idle switching frequency Switching frequency range (amplifier) Switching frequency (power supply) Idle Idle to full scale variation Min Typ 500 90 - Max 550 100 600 600 - Unit kHz kHz kHz Table 15: Electrical specifications Timing Specifications Symbol Parameter Conditions tacd Power supply start up delay. (nominal mains) Time from reaching ACmin to all power supplies are good and amplifier is active. Table 16: Timing specifications Min - Typ 700 Max Unit 1000 ms DATASHEET Version 1.5 Page 13 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Disturbances on the Mains The signal on the mains connection is often very noisy and large surge voltages are present. The ICEpower50ASX2 is equipped with mains filtering to suppress surges and noise. Lightning To avoid damage of the ICEpower50ASX2 in case of surges caused by lightning, special care and component selection have resulted in capability of withstanding surges up to 5.5kV. Mechanical Specifications During development the ICEpower50ASX2 has passed tough mechanical tests to ensure high reliability. Test Acceleration Amount Unpowered tests: The unit is powered after the test to verify functionality. Random vibration Bump 2gRMS 10g/16ms, 2-4 Hz 3x20min 1000 bumps in each of 6 directions7) Shock 70g/12ms Powered tests: The unit is tested with power applied. 3 shocks in each of 6 directions7) Sinusoidal vibrations 2 hours in each of 3 directions7) Random vibrations 2.5mm, 5-10Hz 1g, 10-100Hz 0.01g, 10-20Hz 0.7gRMS –3dB/oct, 20-150Hz Table 17: Mechanical tests 2 hours in each of 3 directions7) 7) 6 directions: (up, down, left, right forward and backward). 3 directions: (up and down, left and right, forward and backward) DATASHEET Version 1.5 Page 14 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Typical Performance Characteristics Frequency Response (SE-version) +24 +90 +23 +80 +22 +70 +21 +20 +60 +19 +50 +18 +40 +17 +16 +30 +15 +20 +14 d B g A +10 +13 +12 +0 +11 d e g -10 +10 -20 +9 +8 -30 +7 -40 +6 -50 +5 +4 -60 +3 -70 +2 -80 +1 -0 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k -90 Hz Figure 3: Frequency response in 4Ω (green), 8Ω (blue) and open load (red). Top – amplitude. Bottom – phase. Frequency Response (BTL-version) +34 +90 +32 +80 +30 +70 +28 +60 +50 +26 +40 +24 +30 +22 +20 +20 d B g +10 +18 +0 +16 A -10 +14 -20 +12 -30 +10 -40 +8 -50 +6 -60 +4 -70 +2 -80 -0 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 4: Frequency response in 4Ω (green), 8Ω (blue) and open load (red). Top – amplitude. Bottom – phase. 50k 100k -90 d e g DATASHEET Version 1.5 Page 15 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Harmonic Distortion & Noise (SE-version) 10 10 5 5 2 2 1 1 0.5 0.5 0.2 % 0.2 0.1 % 0.1 0.05 0.05 0.02 0.02 0.01 0.01 0.005 0.005 0.002 0.002 0.001 100m 200m 500m 1 2 5 10 20 0.001 100m 50 200m 500m 1 2 5 W THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (8Ω). 230Vac/50Hz 10 5 5 2 2 1 1 0.5 0.5 % 0.05 0.02 0.02 0.01 0.01 0.005 0.005 0.002 0.002 200m 500m 1 2 5 10 20 0.001 100m 50 200m 500m 1 2 5 20 50 100 THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (4Ω), 115Vac/50Hz +0 +0 -10 -10 -20 -20 -30 -30 -40 -40 -50 -50 -60 -60 -70 d B r -80 -90 -70 -80 -90 A -100 -100 -110 -110 -120 -120 -130 -130 -140 -140 -150 -150 -160 -170 0 10 W THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (8Ω), 115Vac/50Hz A 100 0.1 0.05 W d B r 50 0.2 0.1 0.001 100m 20 THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (4Ω), 230Vac/50Hz 10 0.2 % 10 W -160 2k 4k 6k 8k 10k 12k 14k 16k Hz 18k 20k 22k -170 0 2k 4k 6k 8k 10k 12k 14k 16k Hz Idle noise (16K FFT). Residual = 25µV(A). f = 5kHz. Po = 100mW. 4Ω loading. (Relative to 50W into 4 ohm) (Relative to 50W into 4 ohm) Figure 5: Total harmonic distortion & noise (SE). 9) An Audio Precision AES17 20 kHz 7th order measurement filter is used for measurements. The frequency 6.67 kHz corresponds to the worst-case situation where both 2nd and 3rd harmonics are within the audio band. 18k 20k 22k DATASHEET Version 1.5 Page 16 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Harmonic Distortion & Noise (BTL-mode) 10 10 5 5 2 2 1 1 0.5 0.5 0.2 0.2 0.1 0.1 0.05 0.05 % % 0.02 0.02 0.01 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 0.0002 0.0001 100m 0.0002 200m 500m 1 2 5 10 20 50 100 0.0001 100m 200 300 200m 500m 1 2 5 W THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (8Ω). 230Vac/50Hz 10 5 5 2 2 1 1 0.5 0.5 0.2 0.2 0.1 0.1 0.05 0.05 50 100 200 300 % 0.02 0.02 0.01 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 0.0002 0.0001 100m 0.0002 200m 500m 1 2 5 10 20 50 100 0.0001 100m 200 300 200m 500m 1 2 5 W 20 50 100 200 300 THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (4Ω), 115Vac/50Hz +0 +0 -10 -10 -20 -20 -30 -30 -40 -40 -50 -50 -60 -60 -70 d B r -80 -90 -70 -80 -90 A -100 -100 -110 -110 -120 -120 -130 -130 -140 -140 -150 -150 -160 -170 0 10 W THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (8Ω), 115Vac/50Hz A 20 THD+N vs. Po at 100Hz, 1kHz and 6.67kHz 8) (4Ω), 230Vac/50Hz 10 % d B r 10 W -160 2k 4k 6k 8k 10k 12k 14k 16k 18k Hz 20k 22k -170 0 2k 4k 6k 8k 10k 12k 14k 16k Hz Idle noise (16K FFT). Residual = 25µV(A). f = 5kHz. Po = 100mW. 4Ω loading. (Relative to 170W into 4 ohm) (Relative to 170W into 4 ohm) Figure 6: Total harmonic distortion & noise (BTL). 10) An Audio Precision AES17 20 kHz 7th order measurement filter is used for measurements. The frequency 6.67 kHz corresponds to the worst-case situation where both 2nd and 3rd harmonics are within the audio band. 18k 20k 22k DATASHEET Version 1.5 Page 17 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Intermodulation Distortion (CCIF & TIM) (SE-version) 1 +0 -10 0.5 -20 -30 0.2 -40 0.1 -50 0.05 -60 0.02 % 0.01 d B r 0.005 A -70 -80 -90 -100 -110 0.002 -120 0.001 -130 0.0005 -140 -150 0.0002 0.0001 100m -160 200m 500m 1 2 5 10 20 -170 0 50 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k 22k 18k 20k 22k Hz W CCIF IMD vs. PO, RL = 4Ω, f1 =18,5kHz, f2 = 1kHz, CCIF IMD analysis. RL = 4Ω, PO =10W IMD@10W = 0.0007% 1 +0 -10 0.5 -20 -30 -40 0.2 -50 0.1 -60 d B r 0.05 % -70 -80 -90 A 0.02 -100 -110 0.01 -120 -130 0.005 -140 -150 0.002 -160 0.001 100m 200m 500m 1 2 5 W TIM vs. output power. RL = 4Ω, TIM@10W = 0.007% Figure 7: Intermodulation distortion (SE) 10 20 50 -170 0 2k 4k 6k 8k 10k 12k 14k 16k Hz TIM FFT analysis. RL = 4Ω, PO =10W DATASHEET Version 1.5 Page 18 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Intermodulation Distortion (CCIF & TIM) (BTL-version) 1 +0 0.5 -10 -20 0.2 -30 0.1 -40 0.05 -50 -60 0.02 % 0.01 d B r 0.005 A -70 -80 -90 -100 0.002 -110 0.001 -120 -130 0.0005 -140 0.0002 0.0001 100m -150 200m 500m 1 2 5 10 20 50 100 -160 0 200 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k 22k 18k 20k 22k Hz W CCIF IMD vs. PO, RL = 4Ω, f1 =18.5kHz, f2 = 1kHz, CCIF IMD analysis. RL = 4Ω, PO =10W IMD@10W = 0.0002% 1 +0 -10 0.5 -20 -30 -40 0.2 -50 0.1 -60 d B r 0.05 % -70 -80 -90 A 0.02 -100 -110 0.01 -120 -130 0.005 -140 -150 0.002 -160 0.001 100m 200m 500m 1 2 5 10 20 W TIM vs. output power. RL = 4Ω, TIM@10W = 0.003% Figure 8: Intermodulation distortion (BTL) 50 100 200 -170 0 2k 4k 6k 8k 10k 12k 14k 16k Hz TIM FFT analysis. RL = 4Ω, PO =10W DATASHEET Version 1.5 Page 19 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Power vs. Frequency Due to the compensating Zobel network in the output stage, the maximum allowable short-term output power is frequency-dependant. The short-term output power is defined as the maximum undistorted (THD+N < 1%) output power until thermal shutdown occurs. The maximum Full Power Bandwidth is 20 kHz. Above this frequency the Zobel protection circuit may briefly shutdown the amplifier to protect the Zobel network from damage. Note that this limitation will never cause any problems when the amplifier is fed a music signal at the input, but the limit must be taken into consideration when the amplifier is tested under laboratory conditions using sine waves or noise signals. . Output Impedance The output impedance is measured by feeding 1ARMS into the output of the amplifier and measuring the voltage on the output. The voltage then corresponds to the output impedance. The output impedance is measured directly on the terminals on the PCB. The figure below shows the output impedance from 100Hz – 20kHz for the SE-version. 300m 280m 260m 240m 220m 200m 180m 160m V 140m 120m 100m 80m 60m 40m 20m 100 200 500 1k 2k 5k Hz Figure 9: Measured voltage at output terminals while feeding 1ARMS into the output of the amplifier at PCB. 10k 20k DATASHEET Version 1.5 Page 20 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply The figure below shows the output impedance from 100Hz – 20kHz for the BTL-version. 600m 550m 500m 450m 400m 350m V 300m 250m 200m 150m 100m 50m 100 200 500 1k 2k 5k Hz Figure 10: Measured voltage at output terminals while feeding 1Arms into the output of the amplifier at PCB 10k 20k DATASHEET Version 1.5 Page 21 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Dissipated Power vs. Output Power SESE-version Mains Voltage VIN: SE-version Idle 1/8 rated power (pink noise) 1/8 rated power (pink noise) Continuous output power Continuous output power 115V/50Hz Load impedance [Ω] Line power [W] Output power (both channels) [W] 7 Dissipated power [W] 7 4 45 21 2x6 9 8 25 13 2x3 7 4 43 104 2 x 43 18 8 25 60 2 x 25 10 Mains Voltage VIN: SE-version Rated power [W] 230V/50Hz Load impedance [Ω] Rated power [W] Idle 1/8 rated power (pink noise) 4 47 1/8 rated power (pink noise) 8 27 Continuous output power 4 43 Continuous output power 8 27 Table 18: Dissipated power vs. Output power (SE) Line power [W] Output power (both channels) [W] 7 Dissipated power [W] 7 21 2x6 9 13 2x3 7 105 2 x 43 19 63 2 x 27 9 DATASHEET Version 1.5 Page 22 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply BTL Power Power Dissipation Mains Voltage VIN: BTL-version Idle 1/8 rated power (pink noise) 1/8 rated power (pink noise) Continuous output power Continuous output power 115V/50Hz Load impedance [Ω] Rated power [W] 4 150 30 19 11 8 95 20 12 8 4 50 66 50 16 8 95 113 95 18 Mains Voltage VIN: BTL-version Idle 1/8 rated power (pink noise) 1/8 rated power (pink noise) Continuous output power Continuous output power Line power [W] 7 Output power [W] Dissipated power [W] 7 230V/50Hz Load impedance [Ω] Rated power [W] Line power [W] 7 Output power [W] Dissipated power [W] 7 4 170 32 21 11 8 100 21 13 8 4 50 66 50 16 8 100 116 100 16 Table 19: Dissipated power vs. Output power (BTL) Loading With its low output impedance, the ICEpower50ASX2 is designed to be unaffected by loudspeaker loading characteristics. However, care should be taken with purely capacitive loads. Traditionally, amplifiers have been tested extensively in laboratories with purely capacitive loads. This was done to test the amplifier’s stability and performance but it does not relate to any normal speaker load as even electrostatic speakers do not present a purely capacitive load to the amplifier but include a resistive part as well. The maximum purely capacitive load allowed is 470nF. DATASHEET Version 1.5 Page 23 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Features The ICEpower50ASX2 has a number of useful features as described below. Overcurrent Monitor Pin 10k 100R Figure 11 shows the internal circuit of the OC pin interface. This pin is high (+5V) under normal conditions. If a short circuit is detected on the speaker output terminals, the pin is pulled low (0V). OC C GND This pin is also activated by other protection features such as Zobel protection and saturation detection on the output. If any of these protection features are activated, the pin will be pulled low (0V). This pin is only an output. GND GND GND Figure 11: Over Current monitor pin interface Thermal Monitor Pin Figure 12 shows the internal circuit of the thermal pin interface. This pin is high (+5V) under normal conditions. If the amplifier temperature becomes too high, the pin is pulled low (0V). This can happen if the continuous power drawn from the amplifier exceeds the limits listed on p. 6 and p. 7. This pin is only an output. 10k 100R Thermal C GND GND GND GND Figure 12: Thermal monitor pin interface Enable Pin The enable pin can enable/disable the amplifier. If the pin is left unconnected, then the level is high (+5V) and the amplifier is enabled. If the pin is pulled low (0V) externally, the amplifier will be disabled.. 10k 100R Enable The enable pin will also be pulled low by the internal protection circuitry if the amplifier temperature becomes too high or a mains under- voltage is detected. This pin is bidirectional. C GND GND GND GND Figure 13: Enable pin interface DATASHEET Version 1.5 Page 24 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Auxiliary Power Supply The auxiliary supply can be used to power an external circuit such as a preamplifier or an equalizer/crossover. Remember that this supply is unregulated. 400mA Vd,aux 400mA When using this AUX supply, please remember to read the sections “Shielding and Grounding of Audio Signals” and “Capacitive Loading of the Aux Supply” in the ICEpower50ASX designer’s manual. To maintain long term power handling and the effects of inrush current, the fuses on the module are 400mA types. To ensure no unexpected burning of the fuse, the maximum output current drawn from the aux supply should not exceed 200mA. +25V GND C GND GND GND GND NOTE: The Vd and Vs outputs are fused. Even brief overload or short circuit will blow the fuses! C Vs,aux +25V Figure 14: Auxiliary supply equivalent diagram DATASHEET Version 1.5 Page 25 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Protection Features The ICEpower50ASX2 is equipped with several protection features for surviving overload without damage. The block diagram below illustrates the different protection features. Figure 15: Protection schematic Power Supply Protection The power supply of the ICEpower50ASX has two protection circuits; overtemperature and overcurrent. The temperature protection will be activated if the absolute temperature of the circuit is too high. This can be caused by high ambient temperature, high load (amplifier and AUX supply) for a long time or a combination of these two parameters. The overcurrent protection will be activated if the output current to amplifier and AUX is too large. Please remember that the AUX supply is protected by fuses. If one of these protection features is triggered, the power supply either limits its output power or shuts down. In case of a shutdown, the power supply will rapidly try to restart if the circuit’s temperature is OK. DATASHEET Version 1.5 Page 26 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Amplifier Local Protection The ICEpower50ASX2 has a local protection circuit for each of the two audio channels. This local protection handles HF protection and saturation detection. If one of these protections features becomes active on one channel, it will only influence on the channel where the error occurred. The HF protection circuit is implemented to protect the Zobel network against ultrasonic signals (greater than 20kHz). This protection circuit has a build-in time constant so it is possible to deliver a high frequency, high amplitude signal for a short time. Amplifier Global Protection Protection There are two global protection features in the 50ASX2 amplifier; an over temperature protection and an overcurrent protection. The over temperature protection will only occur if the PRMS is greater that the specified Continuous Output Power. In normal use, the amplifier will not shut down if properly mounted. The overcurrent detection circuit is included in the ICEpower chipset by detecting saturation of the control system. This condition will typically be allowed in 100ms to 500ms which is enough to avoid accidental shutdown at peak currents during high music output. The current limit is set to 20A. Input/Output Interface Input Stage The single ended input buffer has an anti-aliasing filtering and a DC capacitor. The input impedance of the signal input section is minimum 8kΩ over the audio bandwidth, which is an acceptable loading condition for pre-amps, active crossover outputs etc Vin channel 1 or 2 2u2 100R 1n 100n 270k 47k GND GND GND GND GND Figure 16: Single ended input buffer DATASHEET Version 1.5 Page 27 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply BTL module setup When using the BTL module, the wiring diagram on fig. 17 should be followed. Note that it is the channel 2 speaker terminal which is used on the BTL module (the channel 1 terminal is not mounted on the board). Figure 17: Wiring diagram for the BTL module Output stage L The output stage is a half bridge topology with a 2nd order filter. The filter design is a part of ICEpower’s proprietary MECC topology and has been chosen as the optimal solution between demodulation characteristics, efficiency and filter compactness. The essential output characteristics are: Power stage + L C Cz - Rz • The switching residual on the output primarily consists of a single frequency component at the carrier fundamental fs. The system bandwidth is 130 kHz in 8Ω (SE) and 100 kHz in 8Ω (BTL). Figure 18: SE output filter section with compensating Zobel network L Power stage C Cz Rz + L C Rz Cz Power stage L Figure 19: BTL output filter section with compensating Zobel network DATASHEET Version 1.5 Page 28 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Operational Timing Diagram The following diagram shows selected signals during power up/down (nominal mains). Timing for changes in mains and enable levels 1. 2. 3. 4. 5. 6. 700ms typ. 2ms typ. 100us typ. 2ms typ. 1200ms max. (load/power dependent) 50ms typ. OC and Thermal pins have the same response delays as the Enable pin from when the OC or thermal error is detected. 1 2 3 4 5 6 Mains Enable OC Thermal Audio out Figure 20: Timing – enable and mains Thermal Design Thermal design is generally a great challenge in power amplifier systems. Linear amplifier designs operating in class A or AB are normally very inefficient and therefore equipped with extensive heat sinking to keep the transistor junction temperature low. The ICEpower50ASX2 is based on highly efficient ICEpower switching technology providing high overall efficiency characteristics at all levels of operation. Part of the “component” philosophy of the ICEpower50ASX2 module is to provide a self-cooled component thus eliminating the need for special attention to thermal design. The ICEpower50ASX module is designed for music reproduction, which means that the output power of the amplifier will never be continuous. Research has shown that the RMS level of any music signal does not normally exceed 1/8th of the peak value and the power supply is therefore designed for large short-term power handling and lower continuous power handling. If the average output power of the ICEpower50ASX exceeds 43W @ 4Ω (SE-version with both channels driven) or 50W @ 4Ω (BTLversion) for a long time at 25°C ambient temperature, the module will reach its maximum allowable temperature and the temperature protection will be activated. Further information about thermal design can be found in the ICEpower ASX designer’s manual. DATASHEET Version 1.5 Page 29 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Physical Dimensions All dimensions are in mm. Figure 21: Physical dimensions in mm. Important! A minimum clearance of 12 mm around the module is required for safety and ventilation reasons. DATASHEET Version 1.5 Page 30 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Figure 21: 3D-view of the ICEpower50ASX board DATASHEET Version 1.5 Page 31 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Drill Pattern All dimensions are in mm. The diameter of the mounting holes is 3.5 mm. Height above the PCB is 30 mm. Figure 23: PCB drill pattern. DATASHEET Version 1.5 Page 32 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Safety Standards The ICEpower50ASX2 has been safety approved by UL to ease the design-in procedure and complies with the following standards: IEC 60065 7th ed. UL 60065 7th ed. Europe: US: Safety Class Class 2 (without earth) ESD Warning ICEpower products are manufactured according to the following ESD precautions: • • • IEC 61340-5-1: Protection of electronic devices from electrostatic phenomena. General Requirements. IEC 61340-5-2: Protection of electronic devices from electrostatic phenomena. User Guide. ANSI/ESD-S20.20-1999: Protection of Electrical and Electronic Parts, Assemblies and Equipment. Further handling of the products should comply with the same standards. The general guarantee policy of ICEpower a/s does not cover ESD damaged products due to improper handling. Packaging and Storing Dimensions and weight: Package Quantity Dimensions (w x d x h) Gross Weight Carton 54 39x42x27 cm TBD Pallet 432 60x80x124 cm TBD ESD safe cardboard is used for wrapping. Order codes Description Part number ICEpower50ASX2(BTL) 1x170W ICEpower Amplifier with integrated ICEpower Supply 2x50W ICEpower Amplifier with integrated ICEpower Supply 8003225 ICEpower50ASX2(SE) Storage humidity Do not expose the pallets to rain or humidity levels higher than 85%. 8002660 DATASHEET Version 1.5 Page 33 of 33 ICEpower50ASX2 2x50W or 1x170W ICEpower Amplifier with integrated ICEpower Supply Storage temperature The pallets are to be stored at temperatures from 0°C to 70°C. Stacking Pallets may not be stacked on top of each other. Notes For additional information about the ICEpower® technology from ICEpower a/s, visit our web site or contact us. ICEpower a/s Gl. Lundtoftevej 1b DK-2800 Kgs. Lyngby Denmark Phone Fax +45 96841122 +45 96845799 Website: ICEpower.dk Email: [email protected] Notice The data sheet contains specifications that may be subject to change without prior notice. ICEpower® is a trademark of ICEpower a/s. ICEpower a/s products are not authorized for use as critical components in life support devices or life support systems without the express written approval of the president and general counsel of ICEpower a/s. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labelling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.